JPS587531B2 - Binding method using adhesive tape - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention involves attaching a piece of adhesive tape, which has a non-adhesive surface at both ends folded back in a direction not along the longitudinal direction with the adhesive surface facing U, to an object to be bound. To provide a binding method using adhesive tape, in which binding is performed by bonding adhesive surfaces of adhesive tape pieces with both non-adhesive ends facing each other.

In recent years, adhesive tape has often been used to bag, package, and bind products.

For example, as shown in Fig. 1, there is a bag that is packed in a bag and then the opening is closed to close the adhesive surface at the end of the adhesive tape, and as shown in Fig. 2, it is rolled up in a spiral shape with an adhesive tape.

However, in this method, since the adhesive surface of the adhesive tape is stuck to the end with the adhesive claw 1, it is difficult to pull the tape and the bag often ends up being torn.

Furthermore, when applying the tape, it adheres to the hands of the workers, which hinders the progress of the work.

Furthermore, it is extremely difficult to handle when a portion of the packaged item is taken out and then closed again.

Therefore, the present inventor devised a packaging method that facilitates unwrapping and repackaging by using a tape that is folded back with the adhesive surfaces at both ends facing inside, as shown in FIGS. 3 and 4. It is an invention.

The method according to the present invention will be specifically explained below based on the embodiments shown in FIG. 5 and subsequent figures.

In addition, in FIGS. 5 to 8, the binding mechanism shown in FIG. 14 is omitted for simplicity.

In FIGS. 5 to 7, reference numeral 1 indicates frames erected with their surfaces parallel to each other.

The frame 1 includes a transfer device for transferring the adhesive tape, a cutting device for cutting the transferred tape into a predetermined length, and a mechanism for folding both ends of the cut adhesive tape with the adhesive side inward. A binding mechanism is provided for wrapping and pasting the end-folded tape pieces discharged from the mechanism around objects to be bound.

First, the transfer device for transferring the adhesive tape will be explained. As shown in FIGS. 5 and 7, the adhesive tape coil is mounted on the frame 1 on the shaft table 5 so that the adhesive tape a is rewound at the end. has been done.

6 is a guide roller for the adhesive tape, 7 is a feed roller for the adhesive tape, and at the end of the frame 1 opposite to the guide roller 6, a guide roller 9' and a separating roller 9 are coaxially and rotatably disposed. There is.

An endless string belt 8 is attached to the feed roller 7 and the guide roller 9'.
are strung across two lines.

The separation roller 9 has a larger diameter than the guide roller 9', and its circumferential surface is uneven to prevent adhesive tape from sticking, and the separation roller 9 is supported by the shaft of the guide roller 9l so as to be relatively rotatable. There is.

Reference numeral 21 denotes a manual handle for rotation, which is fixed to one end of the drive shaft 17 rotatably supported by the frame frame 1 .

A crank 2 is fixed to the other end of the drive shaft 17, one end of a connecting rod 3 is pivotally connected to the crank 2, and the other end of the connecting rod 3 is fixed to the shaft of the feed roller 7 in one direction. It is pivotally connected to the clutch 4.

Since the tape transfer device has the above configuration, when the manual handle 21 is rotated once, for example, the drive shaft 17 rotates, and the rotation of the crank 2 displaces the connecting rod 3, so that the feed roller 7 rotates by a predetermined amount. .

The rotation of the feed roller 7 causes the guide belt 8 to move in the direction of the arrows in FIGS. 5 and 7, and the adhesive tape with the adhesive side facing up adheres to the guide belt 8 in a line, moves together with the belt 8, and is fed out.

Next, a cutting device that performs a step of cutting the sent-out adhesive tape into a predetermined length will be described.

As shown in FIG. 7, a sprocket S1 is attached to the drive shaft 17 to which the handle 21 is fixed.

A camshaft 18 is pivotally supported in the center of the frame frame 1, a sprocket S2 corresponding to the sprocket S1 is fixed to the camshaft 18, and a chain 20 is spanned between the sprockets S1 and S2. .

A cam 11 is fixed to the other end of the camshaft 18.

In FIG. 5, there is a
A lever 13 is provided with a fixed end, the lever 1
A cam roller 12, which is displaced by a cam 11, is pivotally attached to the other end of the roller 3.

One end of a cutter lever 22 is fixed to the center of a fulcrum shaft 19 that is pivotally supported on the frame frame 1.
A plate-shaped cutter 23 is attached to the other end.

The frame frame 1 has two levers 15 on both sides with pivot supports 19a.
and the lever 15 is biased by the tension spring 16,
The lever 13 is pulled upward via the joint rod 14.

Since the cutting device has the above configuration, as described above, when the drive shaft 17 is rotated, the cam shaft 18 is rotated via the chain 20, and the cam 11 displaces the cam roller 12 up and down.

When the lever 13 swings due to the displacement of the cam roller 12, the fulcrum shaft 19 rotates, and the cutter lever 22 swings, so that the cutter 23 moves up and down.

When the cutter 23 moves upward, it cuts the adhesive tape being transferred above.

Next, a mechanism for performing the step of folding back and bonding both ends of the adhesive tape cut in this manner will be described.

As shown in FIGS. 5 and 7, two folding molds 30 are symmetrically arranged at positions that sandwich the cutter 23 and hit the center of the tape.

As shown in Figure 5', the folding receiving mold is in the form of a grooved block with openings facing each other, and the upper part of the side surface is sloped and notched to guide folding with a folding pin as described later. do.

On the other hand, the aforementioned cam shaft 1B has a cam 26 at its center.
, a crimping cam 37 is fixed to the opposite end of the cam 11.

The tip of the lever 15 (Figs. 5 and 6) mentioned above is 2
The books are connected by parallel slide rods 31.

A compression spring 33 is fitted into each slide rod 31 symmetrically, as shown in FIGS. 6 and 9, and a slide holder 32 and a stop plate 34 are fitted inside the spring 33 so as to be slidable. There is.

Each of the slide holders 32 is equipped with folding pins with their tips facing inward, and has tension springs 36 attached on both sides so that adjacent comrades are pulled together, as shown in FIG. ing.

As shown in FIGS. 7 and 9, a roller 27 is in contact with the cam 26, and the displacement of the roller 27 by the cam 26 can be freely rotated by a shaft holder 28 attached to the frame frame 1. The intermediate arm 29 is caused to swing (see the 91st solid line and the temporary phase line) through the rotation of the shaft supported by the shaft.

The tip of the intermediate arm 29 is attached to the slide holder 3 described above.
Since it is in contact with the contact plate 34 of No. 2, its swinging causes the slide holder 32 to slide on the slide rond in the direction of the arrow in FIG. 9 against the compression spring 33.

A cam roller 49 touches the crimp cam 37 fixed to the sprocket S2 side of the camshaft 18 (FIG. 8). It is rotatably mounted on the

The other end of the lever 39 is connected to an intermediate lever 41 by a pin 40.
Since the pressure cam 37 rotates, the cam roller 49 is displaced, and this movement causes the intermediate lever 41 to rotate.

Since the intermediate lever 41 is fixed to one end of two crimp shafts 24 that are supported in parallel to the frame, the crimp shaft 24 rotates as shown by the arrow in FIG. 8 when the intermediate lever 41 rotates. do.

The crimp shaft 24 is rotated by the same angle in opposite directions by gears 42 having the same number of teeth and meshing with each other.

Each crimp shaft 24 has a crimp piece 2 as shown in FIG.
5 is fixed, the rotation of the crimp shaft 24 causes the crimp pieces 25 to move toward each other as shown by the arrows in FIG. open or close.

The upper end of the crimp piece 25 is received in the folding mold 30.

The mechanism for folding back the cut adhesive tape is as described above.

Therefore, when the cam shaft 18 is rotated by the rotation of the manual handle 21 and the cam 26 is rotated, the force of the compression spring 33 on the slide rod 31 causes the intermediate arm 29 in contact with the contact plate 34 and the shaft in the shaft holder 28 to rotate. The roller 27 is displaced via the .

Therefore, the slide holder 32 slides inward in FIG. 10, and the folding pins 35 are positioned above both side edges of the adhesive tape (arrow A).

At this time, as the lever 15 begins to lower its tip due to the rotation of the camshaft 18, the folding pin 35 is moved to the first position.
It begins to go down as indicated by the arrow in Figure 0, and finally pushes both sides of the adhesive tape downward until it reaches the position indicated by the imaginary line in Figure 10.

In this state, the adhesive tape has been released downward from the side belt 8.

Along with the movement of the lever 15, the fulcrum shaft 19 rotates due to the movement of the lever 13, and the tip of the cutter lever 22 is lifted, and the cutter 23 is raised.

Then, as described above, when it hits the tape lowered by the folding pin 35, the tape is cut.

When the folding pin 35 is lowered, it is guided by the notch in the side plate of the folding receiving die 30, and changes from the state shown in FIG. 11A to the state shown in FIG. 11B against the force of the tension spring 36.

This movement of the folding pin 35 bends the cut end of the tape as shown from A to B in FIG.

On the other hand, due to the rotation of the cam 37 fixed to the camshaft 18, the two crimp shafts 24 rotate in opposite directions via the cam roller 49, lever 39, pin 40, intermediate lever 41, and gear 42. 25 is opened, and its tip, which is inside the folding mold, folds back the cut end of the tape and crimps it as shown in FIG. 12C.

When the camshaft 18 further rotates, the folding pin 35 comes off the edge of the tape and returns to its original position as indicated by arrow C in FIG. 10, the cutter 23 descends, and the crimp piece 25 closes.

The folded tape returns to its original position as shown in FIGS. 12D to E as the side edges are lifted when the folding pin 35 rises, and is eventually transported by the guide belt 8 as shown in FIG. 13. The state will be as follows.

In the next step, when the manual handle 21 is rotated, the tape is fed out a predetermined length, the cut portion is lowered by the folding pin 35, the cutter 23 cuts and bends the tape, and the tape is folded back by the crimp piece 25.

When the tape is sent out in this process, the tape that was cut and folded back in the previous process is transported to the guide belt 8.
However, it is separated from the guide belt 8 by the separating roller 9 and discharged as shown in FIG.

Finally, a binding mechanism will be described that performs a process of binding objects to be bound using adhesive tape pieces having non-adhesive ends obtained by the tape folding mechanism described above.

In FIG. 14, 43 indicates a shaft 44 at the end of the frame frame 1.
A rotary receiving groove is pivotally mounted on the receiving groove rotating body, the circumference of which faces the position where the tape pieces are discharged from the tape folding mechanism, and the circumference of which receives three objects to be bound. Groove 43
is formed.

Reference numeral 50 denotes a tip plate attached to the frame frame 1 with a connecting bridge 51 (Figure B), and a pressure roller 45 is attached to the tip plate 50 with a pin 46.

The pin 46 is fitted into a long hole provided in the tip plate 50 so that the pressure roller 45 can be displaced in the radial direction of the receiving groove rotating body 43, and the pressure roller 45 is supported by the tip plate 50. It is biased in the direction of the receiving groove rotating body 43 by a spring plate 47 attached with a pin 48 .

Since the binding mechanism has the above structure, the tape whose end is folded back from the tape folding mechanism is
As shown in the figure, it is discharged and flows onto the groove 43' of the receiving groove rotating body 43.

In this state, when the object to be bound b is pushed into the groove 43' and the 5-receiving groove rotating body 43 is rotated clockwise (Fig.
(2) The adhesive tape is pasted together with the pressure roller 45 while enclosing the object to be bound b to perform the binding.

As specifically explained above, the binding method of the present invention includes:
A state in which a piece of adhesive tape with a non-adhesive side formed on both ends, which is folded back in a direction not along the longitudinal direction with the adhesive side inside, is wrapped around an object to be bound, and both non-adhesive ends of the same adhesive tape piece are facing each other. Since the binding is performed by pasting the adhesive surfaces together, the binding is made firmly by pasting the adhesive surfaces together, but since both ends are exposed as non-adhesive surfaces, it is easy to release the binding. Moreover, re-binding can be performed firmly and easily by adhering the adhesive surfaces to each other.

[Brief explanation of the drawing]

FIGS. 1 and 2 are perspective views showing a conventional packaging method, and FIGS. 3 and 4 are perspective views showing bundles made with the apparatus according to the present invention. FIG. 5 is a side view of an embodiment of the device according to the invention, section 5'
6 is a partially broken sectional view taken along the line ■-■ in FIG. 7, FIG. 7 is a sectional view taken along the line N-X in FIG. 8, and FIG. FIG. 8 is an enlarged plan view showing the operating mechanism of the crimp piece, and for simplicity, the binding mechanism is omitted from FIGS. 5 to 8. FIG. 9 is an enlarged plan view showing a mechanism for performing lateral movement of the folding pin, FIG. 10 is an enlarged view of the upper part of FIG. 6, and FIG. 11 is a drawing showing the opening and closing operation of the slide holder. Fig. 12 is a process diagram showing the operation of the folding pin, crimping piece, folding receiver, and cutter; Fig. 13 is a perspective view showing the transport state of the tape with the end folded back; Fig. 14A shows the bundling mechanism. A side view, FIG. 14B is a sectional view taken along the line A--A in FIG. 14A, and FIG. 15 is a drawing for explaining the bundling process. a... Adhesive tape, 17... Drive shaft,
11, 26 and 37...Cam, 23...
Cutter, 25...Crimping piece, 30...
Folding type, 32...Slide holder, 35.
... Folding pin, 43 ... Receiving groove rotating body, 4
5... Pressure roller.

Claims (1)

[Scope of Claims] 1. A piece of adhesive tape with a non-adhesive surface formed at both ends, which is folded back in a direction not along the longitudinal direction with the adhesive side inside, is wrapped around an object to be bound to make the piece of adhesive tape non-adhesive. A binding method using adhesive tape, which is characterized by binding by adhering adhesive surfaces to each other with both ends facing each other. 2. The process of transferring the adhesive tape and cutting it into a predetermined length, folding both ends of the cut adhesive tape piece with the adhesive side inward to form an adhesive tape piece with both non-adhesive ends. and a binding step of wrapping the adhesive tape pieces around the object to be bound and bonding the adhesive surfaces together with the non-adhesive ends facing each other and bonding together. Method.